Simulatenous Video Encoding

Xavier NX has HW accelerated encoding support for both h264 and h265 encoding. I have two streams to encode. What will be faster - two h264 streams or one h264 and another h265? I am curious to know if the Xavier has dedicated unique HW for both kinds of encoding or if does it not matter. If I split the encoding into two different types, would they be using two different HW resources for encoding or the same resource?

Happy to get a reference to more in-depth documentation of the various encoding formats and support for them

For capability of Xavier NX, please refer to module data sheet:

Certain encoding blocks are shared in h264 and h265 encoding, so performance may be impacted in encoding h264 and h265 simultaneously.

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